Supported file systems for read-only operations

Apple DOS file system
Apple Lisa file system
Apple Macintosh File System (MFS)
CP/M file system
U.C.S.D Pascal file system

Supported file systems for identification and information only

3DO Opera file system
Acorn Advanced Disc Filing System
Alexander Osipov DOS (AO-DOS for Electronika BK-0011) file system
Amiga Fast File System v2, untested
Amiga Fast File System, with international characters, directory cache and multi-user patches
Amiga Original File System, with international characters, directory cache and multi-user patches
Apple File System (preliminary detection until on-disk layout is stable)
Apple Hierarchical File System (HFS)
Apple Hierarchical File System+ (HFS+)
Apple ProDOS / SOS file system
AtheOS file system
B-tree file system (btrfs)
BSD Fast File System (FFS) / Unix File System (UFS)
BSD Unix File System 2 (UFS2)
BeOS filesystem
CD-i file system
Coherent UNIX file system
Commodore 1540/1541/1571/1581 filesystems
Cram file system
DEC RT-11 file system
DEC Files-11 (only checked with On Disk Structure 2, ODS-2)
dump(8) (Old historic BSD, AIX, UFS and UFS2 types)
ECMA-67: 130mm Flexible Disk Cartridge Labelling and File Structure for Information Interchange
Flash-Friendly File System (F2FS)
Fossil file system (from Plan9)
HAMMER file system
High Sierra Format
HP Logical Interchange Format
IBM Journaling File System (JFS)
ISO9660
Linux extended file system
Linux extended file system 2
Linux extended file system 3
Linux extended file system 4
Locus file system
MicroDOS file system
Microsoft 12-bit File Allocation Table (FAT12), including Atari ST extensions
Microsoft 16-bit File Allocation Table (FAT16)
Microsoft 32-bit File Allocation Table (FAT32), including FAT+ extension
Microsoft Extended File Allocation Table (exFAT)
Microsoft New Technology File System (NTFS)
Microsoft/IBM High Performance File System (HPFS)
Minix v2 file system
Minix v3 file system
NEC PC-Engine file system
NILFS2
OS-9 Random Block File
Professional File System
QNX4 and QNX6 filesystems
Reiser file systems
SGI Extent File System (EFS)
SGI XFS
SmartFileSystem
SolarOS file system
Squash file system
UNICOS file system
UNIX System V file system
UNIX Version 7 file system
Universal Disk Format (UDF)
UnixWare boot file system
VMware file system (VMFS)
Veritas file system
Xbox filesystems
Xenix file system
Xia filesystem
Zettabyte File System (ZFS)